--- Start of Idrisi List message Hello At present I am doing a project, using satellite images to determine the urbanization in the small islands of Malta. Unfortunately I met several problems namely; 1) the false positives, i.e. non-urban areas marked as urban 2) border and edge effects which tend to create false positives as well 3) isolated pixels marking positive 4) cannot obtain a proper classification as the selection depends on pixels and the maltese area is not very large (resolution is only 30m by 30m) I am using Idrisi32 to determine any change in the urban areas over a number of years using Landsat5 images. I would be very grateful of any help, work or reference you can pass me on. Thanks in advance Neville Micallef University of Malta P.S. I can send some images if necessary. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com --- End of Idrisi List message IDRISI-L is an unmoderated list. As a service to list users, please post a summary of useful responses to your questions. To post a message to IDRISI-L, send it to [EMAIL PROTECTED] To subscribe to the list, send an email from the address to be subscribed to [EMAIL PROTECTED] with "subscribe" (without quotes) as the first line of the message body. To unsubscribe, do the same, only with "unsubscribe" as the first line of the message body.